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EVAP System
DTC Troubleshooting (cont'd)
Check for continuity between EVAP canister purge
v a l v e 2 P c o n n e c t o r t e r m i n a l N o . 2 a n d b o d y g r o u n d .
EVAP CANISTER PURGE
VALVE 2P CONNECTOR
PCS (RED/YELI
Wire side of female terminals
ls there continuity?
YES Go to step 9.
NO - Replace the EVAP canister purge valve.l
Disconnect ECM connector A (32P).
Check for continuity between EVAP canister purge
valve 2P connector terminal No. 2 and body ground.
EVAP CANISTER PURGE
VALVE 2P CONNECTOR
PCS (RED/YEL)
Wire side of female terminals
ls there continuity?
YES Repair short in the wire between the EVAP
c a n i s t e r p u r g e v a l v e a n d t h e E C M ( 4 6 ) . 1
NO Substitute a known-good ECM and recheck
( s e e p a g e 1 l - 5 ) . l f t h e s y m p t o m / i n d i c a t i o n g o e s
a w a y , r e p l a c e t h e o r i g i n a l E C M . I
8 .
9 .
1 0 .
1
2
i1'
2
o
1 1 - 1 3 6
EVAP Bypass Solenoid Valve Test
1 1. Disconnect both vacuum hoses from the EVAP two
way valve (A), and connect a vacuum pump to the
canister port on the two way valve.
Connect ECM connecter terminal 43 to bodv
ground with a jumper wire.
ECM CONNECTOR A {32PI
Wire side ol {emale terminals
T u r n t h e i g n i t i o n s w i t c h O N ( l l ) ,
Apply vacuum to the hose.
Does the valve hold vacuum?
YES Go to step 15.
NO Go to step 20.
f
4973X-041
1 3 .
1 4 .
2WBS IORNI
l
2
3
6
I
t 0
1Z 13
15
/ 1 1 7
16 1 9
m
21
24
6
26 21
6
29 30
32
JUMPER WIRE
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Troubleshooting
